Thread: Re: [HACKERS] pg_upgrade failed with error - ERROR: column "a" in child table must be marked NOT NULL

Alvaro Herrera <alvherre@alvh.no-ip.org> writes:
> On 2025-Jul-04, Alvaro Herrera wrote:
>> Hmm, crake doesn't like the fact that there's no regnamespace in 9.4.
>> Apparently in version 13 we claim to support back to 9.0.  I only tried
>> with an old server version 12.  Should be an easy fix ...

> It goes like this.  It's tested with 9.2 only though, as 9.1 doesn't
> compile from Git (lack of Flex) and I didn't want to try a tarball.

Query works, or at least throws no error, back to 8.4 (the oldest I
have at hand).

            regards, tom lane